Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 251 insertions, 0 deletions

diff --git a/unoxml/source/events/eventdispatcher.cxx b/unoxml/source/events/eventdispatcher.cxx
new file mode 100644
index 000000000..201f682f7
--- /dev/null
+++ b/unoxml/source/events/eventdispatcher.cxx
@@ -0,0 +1,251 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <eventdispatcher.hxx>
+
+#include <event.hxx>
+#include <mutationevent.hxx>
+#include <uievent.hxx>
+#include <mouseevent.hxx>
+
+#include "../dom/document.hxx"
+
+#include <osl/mutex.hxx>
+
+using namespace css::uno;
+using namespace css::xml::dom;
+using namespace css::xml::dom::events;
+
+namespace DOM::events {
+
+    void CEventDispatcher::addListener(xmlNodePtr pNode, const OUString& aType, const Reference<XEventListener>& aListener, bool bCapture)
+    {
+        TypeListenerMap *const pTMap = bCapture
+            ? (& m_CaptureListeners) : (& m_TargetListeners);
+
+        // get the multimap for the specified type
+        ListenerMap *pMap = nullptr;
+        auto tIter = pTMap->find(aType);
+        if (tIter == pTMap->end()) {
+            // the map has to be created
+            auto const pair = pTMap->emplace(aType, ListenerMap());
+            pMap = & pair.first->second;
+        } else {
+            pMap = & tIter->second;
+        }
+        assert(pMap != nullptr);
+        pMap->emplace(pNode, aListener);
+    }
+
+    void CEventDispatcher::removeListener(xmlNodePtr pNode, const OUString& aType, const Reference<XEventListener>& aListener, bool bCapture)
+    {
+        TypeListenerMap *const pTMap = bCapture
+            ? (& m_CaptureListeners) : (& m_TargetListeners);
+
+        // get the multimap for the specified type
+        auto tIter = pTMap->find(aType);
+        if (tIter == pTMap->end())
+            return;
+
+        ListenerMap & rMap = tIter->second;
+        // find listeners of specified type for specified node
+        ListenerMap::iterator iter = rMap.find(pNode);
+        while (iter != rMap.end() && iter->first == pNode)
+        {
+            // erase all references to specified listener
+            if (iter->second.is() && iter->second == aListener)
+            {
+                iter = rMap.erase(iter);
+            }
+            else
+                ++iter;
+        }
+    }
+
+    CEventDispatcher::~CEventDispatcher()
+    {
+    }
+
+    void CEventDispatcher::callListeners(
+            TypeListenerMap const& rTMap,
+            xmlNodePtr const pNode,
+            const OUString& aType, Reference< XEvent > const& xEvent)
+    {
+        // get the multimap for the specified type
+        TypeListenerMap::const_iterator tIter = rTMap.find(aType);
+        if (tIter != rTMap.end()) {
+            ListenerMap const& rMap = tIter->second;
+            auto iterRange = rMap.equal_range(pNode);
+            for( auto iter = iterRange.first; iter != iterRange.second; ++iter )
+            {
+                if(iter->second.is())
+                    (iter->second)->handleEvent(xEvent);
+            }
+        }
+    }
+
+    void CEventDispatcher::dispatchEvent(
+            DOM::CDocument & rDocument, ::osl::Mutex & rMutex,
+            xmlNodePtr const pNode, Reference<XNode> const& xNode,
+            Reference< XEvent > const& i_xEvent) const
+    {
+        TypeListenerMap captureListeners;
+        TypeListenerMap targetListeners;
+        {
+            ::osl::MutexGuard g(rMutex);
+
+            captureListeners = m_CaptureListeners;
+            targetListeners = m_TargetListeners;
+        }
+
+        if (captureListeners.empty() && targetListeners.empty())
+            return;
+
+        rtl::Reference<CEvent> pEvent; // pointer to internal event representation
+
+        OUString const aType = i_xEvent->getType();
+        if (aType == "DOMSubtreeModified"          ||
+            aType == "DOMNodeInserted"             ||
+            aType == "DOMNodeRemoved"              ||
+            aType == "DOMNodeRemovedFromDocument"  ||
+            aType == "DOMNodeInsertedIntoDocument" ||
+            aType == "DOMAttrModified"             ||
+            aType == "DOMCharacterDataModified"    )
+        {
+                Reference< XMutationEvent > const aMEvent(i_xEvent,
+                        UNO_QUERY_THROW);
+                // dispatch a mutation event
+                // we need to clone the event in order to have complete control
+                // over the implementation
+                rtl::Reference<CMutationEvent> pMEvent = new CMutationEvent;
+                pMEvent->initMutationEvent(
+                    aType, aMEvent->getBubbles(), aMEvent->getCancelable(),
+                    aMEvent->getRelatedNode(), aMEvent->getPrevValue(),
+                    aMEvent->getNewValue(), aMEvent->getAttrName(),
+                    aMEvent->getAttrChange());
+                pEvent = pMEvent;
+        } else if ( // UIEvent
+            aType == "DOMFocusIn"  ||
+            aType == "DOMFocusOut" ||
+            aType == "DOMActivate" )
+        {
+            Reference< XUIEvent > const aUIEvent(i_xEvent, UNO_QUERY_THROW);
+            rtl::Reference<CUIEvent> pUIEvent = new CUIEvent;
+            pUIEvent->initUIEvent(aType,
+                aUIEvent->getBubbles(), aUIEvent->getCancelable(),
+                aUIEvent->getView(), aUIEvent->getDetail());
+            pEvent = pUIEvent;
+        } else if ( // MouseEvent
+            aType == "click"     ||
+            aType == "mousedown" ||
+            aType == "mouseup"   ||
+            aType == "mouseover" ||
+            aType == "mousemove" ||
+            aType == "mouseout"  )
+        {
+            Reference< XMouseEvent > const aMouseEvent(i_xEvent,
+                    UNO_QUERY_THROW);
+            rtl::Reference<CMouseEvent> pMouseEvent = new CMouseEvent;
+            pMouseEvent->initMouseEvent(aType,
+                aMouseEvent->getBubbles(), aMouseEvent->getCancelable(),
+                aMouseEvent->getView(), aMouseEvent->getDetail(),
+                aMouseEvent->getScreenX(), aMouseEvent->getScreenY(),
+                aMouseEvent->getClientX(), aMouseEvent->getClientY(),
+                aMouseEvent->getCtrlKey(), aMouseEvent->getAltKey(),
+                aMouseEvent->getShiftKey(), aMouseEvent->getMetaKey(),
+                aMouseEvent->getButton(), aMouseEvent->getRelatedTarget());
+            pEvent = pMouseEvent;
+        }
+        else // generic event
+        {
+            pEvent = new CEvent;
+            pEvent->initEvent(
+                aType, i_xEvent->getBubbles(), i_xEvent->getCancelable());
+        }
+        pEvent->m_target.set(xNode, UNO_QUERY_THROW);
+        pEvent->m_currentTarget = i_xEvent->getCurrentTarget();
+        pEvent->m_time = i_xEvent->getTimeStamp();
+
+        // create the reference to the private event implementation
+        // that will be dispatched to the listeners
+        Reference< XEvent > const xEvent(pEvent);
+
+        // build the path from target node to the root
+        typedef std::vector< ::std::pair<Reference<XEventTarget>, xmlNodePtr> >
+            NodeVector_t;
+        NodeVector_t captureVector;
+        {
+            ::osl::MutexGuard g(rMutex);
+
+            xmlNodePtr cur = pNode;
+            while (cur != nullptr)
+            {
+                Reference< XEventTarget > const xRef(
+                        rDocument.GetCNode(cur));
+                captureVector.emplace_back(xRef, cur);
+                cur = cur->parent;
+            }
+        }
+
+        // the capture vector now holds the node path from target to root
+        // first we must search for capture listeners in order root to
+        // to target. after that, any target listeners have to be called
+        // then bubbeling phase listeners are called in target to root
+        // order
+        // start at the root
+        NodeVector_t::const_reverse_iterator rinode =
+            const_cast<NodeVector_t const&>(captureVector).rbegin();
+        if (rinode == const_cast<NodeVector_t const&>(captureVector).rend())
+            return;
+
+        // capturing phase:
+        pEvent->m_phase = PhaseType_CAPTURING_PHASE;
+        while (rinode !=
+                const_cast<NodeVector_t const&>(captureVector).rend())
+        {
+            pEvent->m_currentTarget = rinode->first;
+            callListeners(captureListeners, rinode->second, aType, xEvent);
+            if  (pEvent->m_canceled) return;
+            ++rinode;
+        }
+
+        NodeVector_t::const_iterator inode = captureVector.begin();
+
+        // target phase
+        pEvent->m_phase = PhaseType_AT_TARGET;
+        pEvent->m_currentTarget = inode->first;
+        callListeners(targetListeners, inode->second, aType, xEvent);
+        if  (pEvent->m_canceled) return;
+        // bubbeling phase
+        ++inode;
+        if (i_xEvent->getBubbles()) {
+            pEvent->m_phase = PhaseType_BUBBLING_PHASE;
+            while (inode != captureVector.end())
+            {
+                pEvent->m_currentTarget = inode->first;
+                callListeners(targetListeners,
+                        inode->second, aType, xEvent);
+                if  (pEvent->m_canceled) return;
+                ++inode;
+            }
+        }
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */